Loss Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income (Loss) [Abstract]
Net loss	$ (431)	$ (8,087)
Less: preferred stock dividends	(99)	(99)
Net loss applicable to common shareholders	$ (530)	$ (8,186)
Weighted Average Shares [Abstract]
Weighted average shares outstanding (in shares)	20,415	20,470
Per Share Amount [Abstract]
Loss per common share	$ (0.03)	$ (0.40)